NASA’s Curiosity rover has uncovered intriguing traces of sulfur crystals embedded in Martian rock formations, adding weight ...

These minerals are found in metamorphic rocks—rocks transformed by heat ... we can unlock the age and chemical compositions ...

Wild Earth Rocks is where crystals sparkle, people find gifts and young geologists dream. 11-year-old Paul Stevens became intrigued by rocks when he was around 6, looking for them in his yard ...